is the formation of a blood clot within a deep vein, in ,most cases it appears in the legs. Nonspecific alerts may include pain, swelling, redness, warmness, and swollen superficial veins. Pulmonary embolism, a potentially life-threatening complication, is caused by the disengagement of a clot that circulates to the lungs. Together, DVT and pulmonary embolism constitute a mono disease which is called venous thromboembolism.
are veins that have become more extensive and twisted. The term commonly refers to the veins on the leg, although varicose veins can appear elsewhere. Veins has dual leaflet valves to block blood from flowing backwards. Leg muscles push the veins to return blood to the heart, against the result of gravity. When veins become varicose, the leaflets of the valves no longer assemble properly, and the valves do not work. This allows blood to flow in reverse order and they expand even more. Varicose veins are most repeated in the superficial veins of the legs, which are context